131855492 has 12 divisors (see below), whose sum is σ = 235656960. Its totient is φ = 64524936.

The previous prime is 131855473. The next prime is 131855533. The reversal of 131855492 is 294558131.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350492 + ... + 350867.

It is an arithmetic number, because the mean of its divisors is an integer number (19638080).

Almost surely, 2^131855492 is an apocalyptic number.

It is an amenable number.

131855492 is a deficient number, since it is larger than the sum of its proper divisors (103801468).

131855492 is a wasteful number, since it uses less digits than its factorization.

131855492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701410 (or 701408 counting only the distinct ones).

The product of its digits is 43200, while the sum is 38.

The square root of 131855492 is about 11482.8346674504. The cubic root of 131855492 is about 508.9784652829.

The spelling of 131855492 in words is "one hundred thirty-one million, eight hundred fifty-five thousand, four hundred ninety-two".